21306100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 28565708

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 83, 85, 100, 151, 166, 170, 302, 332, 340, 415, 425, 604, 755, 830, 850, 1411, 1510, 1660, 1700, 2075, 2567, 2822, 3020, 3775, 4150, 5134, 5644, 7055, 7550, 8300, 10268, 12533, 12835, 14110, 15100, 25066, 25670, 28220, 35275, 50132, 51340, 62665, 64175, 70550, 125330, 128350, 141100, 213061, 250660, 256700, 313325, 426122, 626650, 852244, 1065305, 1253300, 2130610, 4261220, 5326525, 10653050, 21306100]

約数ペア:

[(1, 21306100), (2, 10653050), (4, 5326525), (5, 4261220), (10, 2130610), (17, 1253300), (20, 1065305), (25, 852244), (34, 626650), (50, 426122), (68, 313325), (83, 256700), (85, 250660), (100, 213061), (151, 141100), (166, 128350), (170, 125330), (302, 70550), (332, 64175), (340, 62665), (415, 51340), (425, 50132), (604, 35275), (755, 28220), (830, 25670), (850, 25066), (1411, 15100), (1510, 14110), (1660, 12835), (1700, 12533), (2075, 10268), (2567, 8300), (2822, 7550), (3020, 7055), (3775, 5644), (4150, 5134)]